/**
 *	@file    asn1.h
 *	@version 8e6f0e1 (HEAD -> master)
 *
 *	ASN.1 header.
 */
/*
 *	Copyright (c) 2013-2016 INSIDE Secure Corporation
 *	Copyright (c) PeerSec Networks, 2002-2011
 *	All Rights Reserved
 *
 *	The latest version of this code is available at http://www.matrixssl.org
 *
 *	This software is open source; you can redistribute it and/or modify
 *	it under the terms of the GNU General Public License as published by
 *	the Free Software Foundation; either version 2 of the License, or
 *	(at your option) any later version.
 *
 *	This General Public License does NOT permit incorporating this software
 *	into proprietary programs.  If you are unable to comply with the GPL, a
 *	commercial license for this software may be purchased from INSIDE at
 *	http://www.insidesecure.com/
 *
 *	This program is distributed in WITHOUT ANY WARRANTY; without even the
 *	implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 *	See the GNU General Public License for more details.
 *
 *	You should have received a copy of the GNU General Public License
 *	along with this program; if not, write to the Free Software
 *	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *	http://www.gnu.org/copyleft/gpl.html
 */

/******************************************************************************/

#ifndef _h_PS_ASN1
#define _h_PS_ASN1
#include "crypto/cryptoConfig.h"

/******************************************************************************/
/*
	8 bit bit masks for ASN.1 tag field
*/
#define ASN_PRIMITIVE			0x0
#define ASN_CONSTRUCTED			0x20

#define ASN_UNIVERSAL			0x0
#define ASN_APPLICATION			0x40
#define ASN_CONTEXT_SPECIFIC	0x80
#define ASN_PRIVATE				0xC0

/*
	ASN.1 primitive data types
*/
enum {
	ASN_BOOLEAN = 1,
	ASN_INTEGER,
	ASN_BIT_STRING,
	ASN_OCTET_STRING,
	ASN_NULL,
	ASN_OID,
	ASN_ENUMERATED = 10,
	ASN_UTF8STRING = 12,
	ASN_SEQUENCE = 16,
	ASN_SET,
	ASN_PRINTABLESTRING = 19,
	ASN_T61STRING,
	ASN_IA5STRING = 22,
	ASN_UTCTIME,
	ASN_GENERALIZEDTIME,
	ASN_GENERAL_STRING = 27,
	ASN_BMPSTRING = 30
};

#define ASN_UNKNOWN_LEN	65533

extern int32_t getAsnLength(const unsigned char **p, uint16_t size,
				uint16_t *valLen);
extern int32_t getAsnLength32(const unsigned char **p, uint32_t size,
				uint32_t *valLen, uint32_t indefinite);
extern int32_t getAsnSequence(const unsigned char **pp, uint16_t len,
				uint16_t *seqlen);
extern int32_t getAsnSequence32(const unsigned char **pp, uint32_t size,
				uint32_t *len, uint32_t indefinite);
extern int32_t getAsnSet(const unsigned char **pp, uint16_t len,
				uint16_t *setlen);
extern int32_t getAsnSet32(const unsigned char **pp, uint32_t size,
				uint32_t *len, uint32_t indefinite);
extern int32_t getAsnEnumerated(const unsigned char **pp, uint32_t len,
				int32_t *val);

extern int32_t getAsnInteger(const unsigned char **pp, uint32_t len,
				int32_t *val);
extern int32_t getAsnAlgorithmIdentifier(const unsigned char **pp, uint32_t len,
				int32_t *oi, uint16_t *paramLen);
extern int32_t getAsnOID(const unsigned char **pp, uint32_t len, int32_t *oi,
				uint8_t checkForParams, uint16_t *paramLen);

/******************************************************************************/

#endif /* _h_PS_ASN1 */

/******************************************************************************/

